1 /* Copyright (C) 2001-2012 Artifex Software, Inc. 2 All Rights Reserved. 3 4 This software is provided AS-IS with no warranty, either express or 5 implied. 6 7 This software is distributed under license and may not be copied, 8 modified or distributed except as expressly authorized under the terms 9 of the license contained in the file LICENSE in this distribution. 10 11 Refer to licensing information at http://www.artifex.com or contact 12 Artifex Software, Inc., 7 Mt. Lassen Drive - Suite A-134, San Rafael, 13 CA 94903, U.S.A., +1(415)492-9861, for further information. 14 */ 15 16 17 18 /* Changes after FreeType: cut out the TrueType instruction interpreter. */ 19 20 /******************************************************************* 21 * 22 * ttload.h 1.1 23 * 24 * TrueType Tables Loader. 25 * 26 * Copyright 1996-1998 by 27 * David Turner, Robert Wilhelm, and Werner Lemberg. 28 * 29 * This file is part of the FreeType project, and may only be used 30 * modified and distributed under the terms of the FreeType project 31 * license, LICENSE.TXT. By continuing to use, modify, or distribute 32 * this file you indicate that you have read the license and 33 * understand and accept it fully. 34 * 35 * 36 * Changes between 1.1 and 1.0 : 37 * 38 * - add function Load_TrueType_Any used by TT_Get_Font_Data 39 * 40 ******************************************************************/ 41 42 #ifndef TTLOAD_H 43 #define TTLOAD_H 44 45 #include "ttcommon.h" 46 47 #ifdef __cplusplus 48 extern "C" { 49 #endif 50 51 Int LookUp_TrueType_Table( PFace face, 52 Long tag ); 53 54 TT_Error Load_TrueType_Directory ( PFace face, 55 int faceIndex ); 56 57 TT_Error Load_TrueType_MaxProfile ( PFace face ); 58 TT_Error Load_TrueType_Gasp ( PFace face ); 59 TT_Error Load_TrueType_Header ( PFace face ); 60 TT_Error Load_TrueType_Horizontal_Header( PFace face ); 61 TT_Error Load_TrueType_Locations ( PFace face ); 62 TT_Error Load_TrueType_Names ( PFace face ); 63 TT_Error Load_TrueType_CVT ( PFace face ); 64 TT_Error Load_TrueType_CMap ( PFace face ); 65 TT_Error Load_TrueType_HMTX ( PFace face ); 66 TT_Error Load_TrueType_Programs ( PFace face ); 67 TT_Error Load_TrueType_OS2 ( PFace face ); 68 TT_Error Load_TrueType_PostScript ( PFace face ); 69 TT_Error Load_TrueType_Hdmx ( PFace face ); 70 71 TT_Error Load_TrueType_Any( PFace face, 72 Long tag, 73 Long offset, 74 void* buffer, 75 Long* length ); 76 77 TT_Error Free_TrueType_Names( PFace face ); 78 TT_Error Free_TrueType_Hdmx ( PFace face ); 79 80 /* The following macros are defined to simplify the writing of */ 81 /* the various table and glyph loaders. */ 82 83 /* For examples see the code in ttload.c, ttgload.c etc. */ 84 85 #define USE_Stream( original, duplicate ) \ 86 ( error = TT_Use_Stream( original, &duplicate ) ) 87 88 #define DONE_Stream( _stream ) \ 89 TT_Done_Stream( &_stream ) 90 91 /* Define a file frame -- use it only when needed */ 92 #define DEFINE_A_FRAME TFileFrame frame = TT_Null_FileFrame 93 94 /* Define a stream -- use it only when needed */ 95 #define DEFINE_A_STREAM TT_Stream stream 96 97 #define GET_Byte() ttfReader__Byte (r) 98 #define GET_UShort() ttfReader__UShort(r) 99 #define GET_Short() ttfReader__Short (r) 100 #define GET_Long() ttfReader__Int (r) 101 #define GET_ULong() ttfReader__UInt(r) 102 103 #ifdef TT_CONFIG_REENTRANT /* re-entrant implementation */ 104 105 /* The following macros define the necessary local */ 106 /* variables used to access streams and frames. */ 107 108 /* Define stream locals with frame */ 109 #define DEFINE_STREAM_LOCALS \ 110 TT_Error error; \ 111 DEFINE_A_STREAM; \ 112 DEFINE_A_FRAME 113 114 /* Define stream locals without frame */ 115 #define DEFINE_STREAM_LOCALS_WO_FRAME \ 116 TT_Error error; \ 117 DEFINE_A_STREAM 118 119 /* Define locals with a predefined stream in reentrant mode -- see ttload.c */ 120 #define DEFINE_LOAD_LOCALS( STREAM ) \ 121 TT_Error error; \ 122 DEFINE_A_STREAM = (STREAM); \ 123 DEFINE_A_FRAME 124 125 /* Define locals without frame with a predefined stream - see ttload.c */ 126 #define DEFINE_LOAD_LOCALS_WO_FRAME( STREAM ) \ 127 TT_Error error; \ 128 DEFINE_A_STREAM = (STREAM) 129 130 /* Define all locals necessary to access a font file */ 131 #define DEFINE_ALL_LOCALS \ 132 TT_Error error; \ 133 DEFINE_A_STREAM; \ 134 DEFINE_A_FRAME 135 136 #define ACCESS_Frame( _size_ ) \ 137 ( error = TT_Access_Frame( stream, &frame, _size_ ) ) 138 #define CHECK_ACCESS_Frame( _size_ ) \ 139 ( error = TT_Check_And_Access_Frame( stream, &frame, _size_ ) ) 140 #define FORGET_Frame() \ 141 ( error = TT_Forget_Frame( &frame ) ) 142 143 #define FILE_Pos() TT_File_Pos ( stream ) 144 145 #define FILE_Seek( _position_ ) \ 146 ( error = TT_Seek_File( stream, _position_ ) ) 147 #define FILE_Skip( _distance_ ) \ 148 ( error = TT_Skip_File( stream, _distance_ ) ) 149 #define FILE_Read( buffer, count ) \ 150 ( error = TT_Read_File ( stream, buffer, count ) ) 151 #define FILE_Read_At( pos, buffer, count ) \ 152 ( error = TT_Read_At_File( stream, pos, buffer, count ) ) 153 154 #else /* thread-safe implementation */ 155 156 /* Define stream locals with frame -- nothing in thread-safe mode */ 157 #define DEFINE_STREAM_LOCALS \ 158 TT_Error error 159 160 /* Define stream locals without frame -- nothing in thread-safe mode */ 161 #define DEFINE_STREAM_LOCALS_WO_FRAME \ 162 TT_Error error 163 164 /* Define locals with a predefined stream in reentrant mode -- see ttload.c */ 165 #define DEFINE_LOAD_LOCALS( STREAM ) \ 166 TT_Error error 167 168 /* Define locals without frame with a predefined stream - see ttload.c */ 169 #define DEFINE_LOAD_LOCALS_WO_FRAME( STREAM ) \ 170 TT_Error error 171 172 /* Define all locals necessary to access a font file */ 173 #define DEFINE_ALL_LOCALS \ 174 TT_Error error; \ 175 DEFINE_A_STREAM 176 177 #define ACCESS_Frame( _size_ ) \ 178 ( error = TT_Access_Frame( _size_ ) ) 179 #define CHECK_ACCESS_Frame( _size_ ) \ 180 ( error = TT_Check_And_Access_Frame( _size_ ) ) 181 #define FORGET_Frame() \ 182 ( error = TT_Forget_Frame() ) 183 184 #define GET_Tag4() TT_Get_Long () 185 186 #define FILE_Pos() TT_File_Pos() 187 188 #define FILE_Seek( _position_ ) \ 189 ( error = TT_Seek_File( _position_ ) ) 190 #define FILE_Skip( _distance_ ) \ 191 ( error = TT_Skip_File( _distance_ ) ) 192 #define FILE_Read( buffer, count ) \ 193 ( error = TT_Read_File ( buffer, count ) ) 194 #define FILE_Read_At( pos, buffer, count ) \ 195 ( error = TT_Read_At_File( pos, buffer, count ) ) 196 197 #endif /* TT_CONFIG_REENTRANT */ 198 199 #ifdef __cplusplus 200 } 201 #endif 202 203 #endif /* TTLOAD_H */ 204 205 /* END */ 206